When i OC getting out of the car i pull my firearm out of the center console insert magazine, release slide and holster it before my but leaves the seat, getting in the car i sit down, unholster, eject mag, rack it to remove the chambered cartridge, lock slide back, put back in center console. I practice and do it enough that i can have the firearm put away before the wife gets to her side and buckled in. While personally i dont agree with the distinction between oc and cc in a car it is muscle memory now and i dont even think about it.
I like the term smoke wagon. Heh.